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B. WIRTH & F. M. FARGO.

HAND TQOL PdR SETTING AND INSERTING LACE FASTENERS. No. 582,332. Patented May 11, 1897.

UNITED STATES PATENT ErcE.

RODOLPHE WIRTH AND FRANK M. FARGO, OF CHICAGO, ILLINOIS, ASSIGNORS TO THE PRATT FASTENER COMPANY, OF SAME PLACE.

HAND-TOOL FOR SETTING AND INSERTING LACE-FASTENERS.

SPECIFICATION forming part of Letters Patent No. 582,332, dated May 11, 1897.

Application filed. June 1, 1896- Serial No. 593,950. (No model.)

To all whom it may concern:

Be it known that we, RODOLPHE WIRTH, a citizen of the Republic of France, and FRANK M. FARGO, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Hand-Tool for Inserting and Setting Lace-Fasteners, of which the following is a specification.

This invention relates to hand-tools for inserting and setting lace-fasteners, and is particularly designed for use in inserting and setting lace-fasteners of the form shown, described, and claimed in Patent N 0. 559,463, dated May 5, 1896, to Charles H. Pratt.

The object of the invention is to provide a hand-tool for use in inserting and setting lace fasteners rapidly and expeditiously which is simple in construction and thoroughly efficient in operation.

The invention consists, substantially, in the construction, combination, location, and relative arrangement of parts, all as will be more fully hereinafter set forth, as shown in the accompanying drawings, and finally specifically pointed out in the appended claims.

Referring to the accompanying drawings and to the various views and reference-signs appearing thereon, Figure 1 is a view, partly in section, of the hand-tool embodying the principles of our invention. Fig. 2 is'a broken detail view in perspective of the fastenerholder jaw of the tool. Fig. 3 is a similar view showing the cooperating jaw of the tool. Fig. 4 is aview in plan taken from the under side of the fastener, illustrating the method of bending and clenching the ends of such fastener. Fig. 5 is a side View of the form of fastener shown in Fig. 4. Fig. 6 is a trans verse sectional view of the fastener-holding aw.

The same part is designated by the same reference-sign wherever it occurs.

In the drawings reference-signs A and B designate, respectively, the handle-arms of our tool, said handle-arms being suitably pivoted together, as at C, in the usual manner of hand-dies. The handle bars or arms A B are provided with cooperating jaws D E, in the outer meeting edges of which are formed the recesses F, adapted to receive the removable blocks G H, said blocks G H removably secured in the recesses F in any suitable manner, as by means of screw J.

The block G in the recesses of jaw D of the tool is provided with one or more seats K of a sufficient depth to receive therein the body of the fastener L, said fastener adapted to be arranged in said seat or seats with the ends M N thereof projecting outwardly therefrom,

as clearly shown in the drawings, said seats K being of sufficient depth below the outer surface of the block G for the coil forming the fastener to be contained therein, whereby said coils will not project above or beyond When the fastener N is inserted in the seat K, the coils thereof are arranged to surround the posts 0, as clearly shown in Fig. 2. y We shall hereinafter designate the posts 0 as clenching-posts.

Any suitable means for retaining the fasteners L in the seats K, in order that said fasteners will not fall out of such seats when the tool is inverted, may be employed. WVe have shown a convenient arrangement for this purpose wherein we cut away the outer portion of the block G, as at P, to a point communicating with the seats K, and we mount upon the end of the jaw D the plate Q, hav ing a spring-lip R arranged to project into the cut-away portion P and to engage and hold the fastener in the seat K, as clearly shown in Fig. 2.

It will be understood that the form of fastener to which our hand-tool is particularly adapted, and as shown in the patent referred to, is composed of one or more helical convolutions or partial convolutions or coils having the ends bent at substantially right angles to the plane of said coils, the end of the topmost coil being passed outside of the coils forming the body of the fastener. It is necessary, therefore, to form the seats K in such manner as to accommodate the shoulder of said end of the coil. We have therefore provided the seats K with a recess S for this pur- 10o pose.

In the face of block H of jaw E we provide a pair of depressed recesses T U for each seat K of the cooperating jaw D, said depressions T U presenting a curved bottom wall, as indicated in Fig. The members of each pair of seats T U are inclined at substantially right angles with reference to each other, as indicated. The object of this arrangement is to bend the ends M N of the fastener after they have been forced through the material or fabric to which the fastener is to be applied, and to effect the bending of said ends at right angles with respect to each other, as it will be understood that the end N of the fastener-namely, the end of the upper coil of the fastener and which is bent at substantially right angles to the plane of the coil and on the outside thereof-forms the post or bearing to prevent the coils from creeping upon each other and to resist the strain upon the lace, and when inserted in the fabric is called upon to perform the hardest work. Therefore, in order to increase the efficiency of the fastener, it is important to bend said end toward the center of the coil or coils coinposing the fastener in order to afford the greatest amount of bearing for the fastener. The seat T of each pair of seats T U in the jaw E of the tool is therefore arranged in such manner that it effects a bending of the end N inwardly toward the body of the fastener during the inserting and clenching operations.

The clenching-post O in addition to providing an efficient means for assisting in maintaining the fastener in the seat K also performs another important function-namely, it performs the function of a clenching-post for clenching or upsetting the end N of the fastener, thereby preventing said end from being forced through to the opposite or top side of the fabric, which is an objection which it is desirable to overcome and avoid.

By making the blocks G II removable said blocks may be readily removed and replaced by other blocks when worn out, and we can make such blocks of hardened steel, thereby materially extending and increasing the life of said parts.

A tool constructed in accordance with our invention is exceedingly simple and efficient in operation.

Changes in the details of construction and arrangement of parts would readily suggest themselves to persons skilled in the art and still fall within the spirit and scope of our invention. We do not desire, therefore, to be limited or restricted to the exact details shown and described; but,

Having now set forth the object and nature of our invention and a form of apparatus embodying the same, what we claim as new and useful and of our own invention, and desire to secure by Letters Patent, is-

1. In a hand-tool for inserting and setting lace-fastenters, a pair of cooperating jaws one of said jaws provided with a seat adapted to receive and hold the body of the fastener and also with a clenching-post the other of said jaws adapted to engage and bend the ends of the fastener and clench the same against said clenching-post,as and for the purpose set forth.

2. In a hand-tool for setting and inserting lace-fasteners, a pair of cooperating jaws one of said jaws provided with one or more seats for receiving the fastener, a post formed centrally in said seat, and the other of said jaws arranged to engage and bend the ends of the fastener and to clench the same upon said post, as and for the purpose set forth.

3. In a hand-tool for inserting and setting lace-fasteners, a pair of cooperating jaws one of said jaws provided with one or more seats adapted to receive the body of the fastener, having a post arranged centrally in said seat or seats, means for retaining the fastener in said seat or seats, the other of said jaws arranged to engage and bend the ends of the fastener and to clench the same upon said post, as and for the purpose set forth.

4:. In a hand-tool for inserting and setting lace-fasteners, a pair of cooperating jaws, one of said jaws formed with one or more seats adapted to receive and hold the fastener and having a clenching-post therein,the other of said jaws provided with a pair of depressions corresponding to each of said seats, said depressions being angularly arranged with respect to each other and having curved bottoms adapted to engage and bend the ends of the fastenerand to clench the same upon said post, as and for the purpose set forth.

In witness whereof we have hereunto set our hands this 21st day of May, 1896.

RODOLPIIE VVIRTII. FRANK M. FARGO. Attest:

DAVID O. WALEs, S. E. DARBY. 

